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Calculate the amount of heat transfered when 24.0 g of CH3OH decompose at constant pressure. delta H is 126.4 kJ
The masses of the unknown and the solvent (water) were determinded, and the unknown completely dissolved in the water. Just before the jacketed test tube containing the unknown solution was placed in the ice-salt water bath
How many grams of KNO3 are needed to make 450 mL of a solution that is to contain 5.50 mg/mL of potassium ion? Calculate the molarity of the solution.
How many grams (to the nearest 0.01 g) of NH4Cl (Mm = 53.49 g/mol) must be added to 550. mL of 0.906-M solution of NH3 in order to prepare
calculate the mass of magnesium that is required to produce 35.8ml of hydrogen gas at 28°c and a barometric pressure of 745 mmHg when collected over water?
the reaction ch3ch2no2 oh- rarr h2o ch3chno2nbsp- obeys the rate lawnbspdadt -kaoh- where a denotes ch3ch2no2. it
alpha-titanium alloy to process into a turbine blade. Based on the fact that the alloy has an HCP crystal structure, what general processing technique
In the following reaction, how many moles of the non-limiting reactant are in excess if 4.4 mol Al are combined with 2.7 mol HCl
a chemistry student needs of chloroform for an experiment. by consulting the crc handbook of chemistry and physics the
A student obtains a vinegar solution having an acetic acid concentration of 0.8512 M. What volume of 0.1036 M NaOH will be required to reach the equivalence point when 25.00 mL of the vinegar solution is titrated?
picometers and a crystal of metal X has a unit-cell that is faced centered cubic. Calculate the density of Metal X(Atomic Weight = 42.3g/mol)
Calculate the Calorimeter Constant if 25 g of water at 53C was added to 25 g of water at 25C with a resulting temperature of 35C?
What is the percent ionization of a solution prepared by dissolving 0.0223 mol of chloroacetic acid, HC2H2O2Cl) in 1.80 L of water? For chloroacetic acid, Ka = 1.4 ? 10-3.
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